COMPARE Ph I trial CD19 CAR T-cell ACPA+ refractory RA 6 pts median 6.5 b/tsDMARDs Single CAR T infusion after lymphodepletion Safety -CRS only grade 1–2 (no severe events) -No ICANS -Transient neutropenia -No unexpected toxicities Efficacy DAS28-CRP ↓ ~41% median 50% achieved https://t.co/cdEfGKcJUp